卫星追踪器依靠太阳能供电，可实时记录鸟类位置、体温、飞行高度及速度等数据，光照条件良好时最 快每秒回收一次数据。它不仅能清晰呈现迁徙路线，助力研究鸟类活动规律与栖息地偏好，还能通过追 踪放归鸟类的活动数据，评估救护及放归效果。 "十四五"期间，北京40余个鸟类监测站陆续引入了声纹和图像智能识别设备。借助人工智能和大数据分 析，通过识别鸟类外观、声音等特征，进行鸟类种类和数量的监测。 （央视财经《正点财经》）"十四五"期间，我国鸟类保护的技术手段持续升级，通过科技赋能推动鸟类 保护从粗放管理迈向精准施策，显著提升了种群分析与候鸟追踪的精准度。来看记者在北京的探访。 北京市野生动物救护中心科研宣教科科长 张亚琼：这只大鵟是年初的时候被市民发现的，救护到我们 中心饲养了一段时间，想今年冬天的时候，迁徙季大鵟成群来的时候，让它尽快融入集体，再及时地给 它放飞。相当于给它背一个书包一样的东西，所有的卫星跟踪器的重量，全球统一的标准是不超过它体 重的5%。 在地形复杂、人力难以抵达的湿地区域，无人机成为有力的辅助监测手段。 转载请注明央视财经 编辑：王昕宇 ...

Core Viewpoint - The successful rehabilitation and release of a critically injured gull, identified as 3991, highlights the importance of conservation efforts for endangered species, particularly the vulnerable gull population in Tianjin, China [1][2]. Group 1: Rehabilitation and Release - The gull 3991 was discovered on March 13, 2023, with severe injuries to its left wing and foot, and was rescued by a conservation team [1]. - After receiving careful treatment, 3991 was released on April 5, 2023, equipped with a solar-powered satellite tracker to monitor its movements [1]. Group 2: Migration and Breeding - Following its release, 3991 was tracked to a significant breeding area near Kangbao County, Hebei, indicating it may have found a mate [2]. - The Tianjin Planning and Natural Resources Bureau, in collaboration with research teams, has been studying the wintering gull population and migration patterns, fitting 40 gulls with satellite trackers over the past year [2]. Group 3: Conservation Efforts - The application of technology in monitoring gull movements has enhanced conservation efforts, allowing for timely interventions when disturbances occur, such as construction noise affecting the birds [2]. - The population of gulls wintering in Tianjin has stabilized, with over 10,000 individuals recorded annually, and their distribution range has expanded in recent years [2]. Group 4: Future Expectations - The research team is hopeful that 3991 will return in the fall with offspring, reflecting the success of conservation initiatives [3].

Core Points - The article discusses the successful rehabilitation and release of a rare bird, the 3991, which is a critically endangered species known as the relic gull [1][2] - The bird was found injured on March 13 and was treated by a rescue team, eventually being fitted with a satellite tracker before its release [1] - The tracking data indicates that 3991 has moved to a significant breeding area in Hebei province, suggesting it may have found a mate [2] Group 1 - The relic gull, classified as a first-class protected species in China, is facing threats and is considered vulnerable globally [1] - The Tianjin coastal wetlands serve as a crucial wintering ground for these birds, with over 10,000 relic gulls wintering in Tianjin annually [2] - The use of satellite tracking technology has enhanced the understanding of the migration patterns and behaviors of the relic gull population [2] Group 2 - The Tianjin Planning and Natural Resources Bureau, in collaboration with research teams, has been studying the wintering relic gull population and their migration patterns [2] - The satellite tracking devices provide real-time data on the birds' movements, which aids in conservation efforts [2] - Recent observations indicated that construction noise disturbed the gulls, prompting adjustments in construction plans to minimize impact on the birds [2]

Group 1 - The article highlights the annual migration of the Beijing Swift, which travels approximately 16,000 kilometers from southern Africa to Beijing, showcasing its remarkable endurance and resilience [2][12][20] - The Beijing Swift is recognized as a cultural and ecological symbol of the city, with increasing attention and protection efforts contributing to its significance [3][7][14] - The swifts typically nest in the hidden spaces of ancient architecture, particularly in places like the Summer Palace, which provides ideal conditions for their breeding [14][16][20] Group 2 - Bird banding has been an important method for studying the migration patterns and behaviors of the Beijing Swift since the 1990s, with advancements in tracking technology enhancing research accuracy [21][27][29] - The banding process involves capturing the birds, measuring their physical data, and attaching identification rings, which allows researchers to track population changes and individual lifespans [23][25] - Recent upgrades to tracking devices, including light-sensitive locators and satellite trackers, have improved the precision of migration data collection [27][29][31]